Added the pre solution build targets to handle nuget restore
Added the pre solution build targets to handle nuget restore

This targets file is auto loaded when the solution is build, taking care
of downloading the nuget.exe to its right location and restoring all
packages for the solution.
See http://www.cazzulino.com/ultimate-cross-platform-nuget-restore.html

SoftWar1923/orleans,ashkan-saeedi-mazdeh/orleans,MikeHardman/orleans,bstauff/orleans,kangkot/orleans,yevhen/orleans,garbervetsky/orleans,galvesribeiro/orleans,hoopsomuah/orleans,modulexcite/orleans,cato541265/orleans,jdom/orleans,jokin/orleans,centur/orleans,rore/orleans,zhangf911/orleans,pherbel/orleans,garbervetsky/orleans,ElanHasson/orleans,brhinescot/orleans,dVakulen/orleans,Liversage/orleans,bstauff/orleans,benjaminpetit/orleans,cbredlow/orleans,modulexcite/orleans,dotnet/orleans,jthelin/orleans,sergeybykov/orleans,waynemunro/orleans,LoveElectronics/orleans,kucheruk/orleans,Liversage/orleans,kylemc/orleans,cato541265/orleans,MikeHardman/orleans,NaseUkolyCZ/orleans,ashkan-saeedi-mazdeh/orleans,kucheruk/orleans,ticup/orleans,ibondy/orleans,Carlm-MS/orleans,kangkot/orleans,hoopsomuah/orleans,jdom/orleans,amccool/orleans,skalpin/orleans,LoveElectronics/orleans,TedDBarr/orleans,kylemc/orleans,ashkan-saeedi-mazdeh/orleans,dVakulen/orleans,rrector/orleans,carlos-sarmiento/orleans,dariobottazzi/orleans,shlomiw/orleans,carlos-sarmiento/orleans,gigya/orleans,gabikliot/orleans,gabikliot/orleans,centur/orleans,gigya/orleans,veikkoeeva/orleans,waynemunro/orleans,kowalot/orleans,Joshua-Ferguson/orleans,dotnet/orleans,dVakulen/orleans,ibondy/orleans,sebastianburckhardt/orleans,jokin/orleans,amccool/orleans,brhinescot/orleans,galvesribeiro/orleans,brhinescot/orleans,tsibelman/orleans,shayhatsor/orleans,jkonecki/orleans,rrector/orleans,amccool/orleans,xclayl/orleans,sergeybykov/orleans,Liversage/orleans,xclayl/orleans,jkonecki/orleans,ReubenBond/orleans,ticup/orleans,shlomiw/orleans,kowalot/orleans,zhangf911/orleans,pherbel/orleans,rore/orleans,jason-bragg/orleans,Joshua-Ferguson/orleans,Carlm-MS/orleans,sebastianburckhardt/orleans,skalpin/orleans,NaseUkolyCZ/orleans,TedDBarr/orleans,tsibelman/orleans,SoftWar1923/orleans,yevhen/orleans,jokin/orleans,cbredlow/orleans,dariobottazzi/orleans,shayhatsor/orleans,ElanHasson/orleans